Question 342048
(3,4) and (7,0)
Y=mX+b
m=(y2-y1)/(x2-x1)
m=(0-4)/(7-3)=-4/4=-1 ans.
4=-1*3+b
4=-3+b
b=4+3
b=7 for the Y intercept.
Y=-X+7
{{{ graph( 300, 200, -6, 5, -10, 10, -x +7) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -x +7).